And here is the finished product, sounding bloody superb.
A push-pull output transformer can be converted to single ended. There will be limits on the power you can get out of one, but the sound can be stunningly good. But FFS don’t expect to run 845s off one.
And it goes without saying; don’t try this at home.
Seems all my assumptions turned out to be right on the money.Extreme DIY.
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Re: Extreme DIY.
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- karatestu (Wed May 26, 2021 4:34 pm)
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Re: Extreme DIY.
I don't really understand much of what you've talked about, but the end product looks stunning`.
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Re: Extreme DIY.
As you are familiar the gap is to stop saturation and thus allow fuller use of the B/H curve.
What would happen if we fitted in the core a linear Hall Effect transistor, and then with a reverse winding applied a DC to push the B/H curve back to close to the Negative end.
Would it allow you to use more of the curve thus more power.
OK it would have to have very low frequency cut of let say 1Hz well out of the audio band usefulness, what do you think ?
Would it allow us to use the straight line part of the core?
And could we use say Arnold Core material as used in MagAmp PSU designs?
These have a very vertical B/H curve.
Just an idea.
Or am I writing
What would happen if we fitted in the core a linear Hall Effect transistor, and then with a reverse winding applied a DC to push the B/H curve back to close to the Negative end.
Would it allow you to use more of the curve thus more power.
OK it would have to have very low frequency cut of let say 1Hz well out of the audio band usefulness, what do you think ?
Would it allow us to use the straight line part of the core?
And could we use say Arnold Core material as used in MagAmp PSU designs?
These have a very vertical B/H curve.
Just an idea.
Or am I writing
- SteveTheShadow
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Re: Extreme DIY.
Hmm ….. a Hall Sensor buried in a transformer core. I’ve no idea whether it would work. It’s certainly intriguing, and beyond my meagre capabilities.
Somebody’s telling me the latest scandals.
Somebody’s stepping on my plastic sandals. Joe Jackson (1979)
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Re: Extreme DIY.
I think the effects would be dependent upon the characteristics of the hall effect transistor. From, poor, memory I think they can be non-linear which wouldn't be terribly clever.Wonfor14 wrote: ↑Sun Jun 06, 2021 9:11 am As you are familiar the gap is to stop saturation and thus allow fuller use of the B/H curve.
What would happen if we fitted in the core a linear Hall Effect transistor, and then with a reverse winding applied a DC to push the B/H curve back to close to the Negative end.
Would it allow you to use more of the curve thus more power.
OK it would have to have very low frequency cut of let say 1Hz well out of the audio band usefulness, what do you think ?
Would it allow us to use the straight line part of the core?
And could we use say Arnold Core material as used in MagAmp PSU designs?
These have a very vertical B/H curve.
Just an idea.
Or am I writing